288401439 has 8 divisors (see below), whose sum is σ = 401254272. Its totient is φ = 183908120.

The previous prime is 288401431. The next prime is 288401441. The reversal of 288401439 is 934104882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 288401439 - 2³ = 288401431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 288401397 and 288401406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288401431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2089797 + ... + 2089934.

It is an arithmetic number, because the mean of its divisors is an integer number (50156784).

Almost surely, 2^288401439 is an apocalyptic number.

288401439 is a deficient number, since it is larger than the sum of its proper divisors (112852833).

288401439 is a wasteful number, since it uses less digits than its factorization.

288401439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179757.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 288401439 is about 16982.3861397626. The cubic root of 288401439 is about 660.6921412081.

The spelling of 288401439 in words is "two hundred eighty-eight million, four hundred one thousand, four hundred thirty-nine".